American Thoracic Society Documents 401 Figure 2. Algorithm forinitiating empiric antibi-otic therapy for hospital-acquired pneumonia (HAP),ventilator-associated pneu-monia (VAP), and health-care-associatedpneumonia(HCAP). Figure 2.
One milligram is one thousandth of a gram and one thousand micrograms. A milligram is generally abbreviated as mg. MICROGRAM. One microgram is one millionth of a gram and one thousandth of a milligram. It is usually abbreviated as mcg or ug. Mcg and ug are the same.
The term âmgâ stands for the measurement of âmilligramsâ while âmcgâ stands for âmicrograms.â Both units are used to measure an objectâs mass and to indicate an objectâs weight. With reference to other units of measurement, an mcg is equal to .001 mg. It implies that the microgram is smaller compared to a milligram. Compared to a gram, a microgram is a millionth smaller. The microgram is one of the smallest units and is frequently used in microbiology tests specifically in measurements for antibiotics like penicillin, oxacillin and others.